Is there any function that allow us to clone mesh or a kind of stamp tool?
With your object selected, you can press Shift + D to duplicate it, and then Ctrl + M as well as a letter denoting your axis (X, Y, Z) to mirror the object along that axis. Foe example to copy a shoe and Mirror it along the Y axis, I would do Shift + D (Duplicate) and then Ctrl + M + Y (Mirror on Y)